Checkpoints
List checkpoints
Lists Loops checkpoints filtered by run id, base model, or bt:// URI. Provide exactly one filter.
GET
cURL
Authorizations
Send Authorization: Bearer <api_key>. The legacy Authorization: Api-Key <api_key> scheme is also accepted.
Query Parameters
Filter by run ID. Returns all checkpoints saved by the run.
Example:
"k4q95w5"
Filter by base model. Returns checkpoints across the caller's runs of this base model.
Example:
"Qwen/Qwen3-8B"
bt:// URI of a Loops checkpoint. Form: bt://loops:<run_id>/(weights|sampler_weights)/<checkpoint_name>.
Example:
"bt://loops:k4q95w5/sampler_weights/step-100"
Response
200 - application/json
Checkpoints matching the query filter.
Matching checkpoints.
cURL